Calcium Carbonate and Hydrochloric Acid (Antacid)

CaCO3 + 2HCl → CaCl2 + H2O + CO2

Descripción general

Calcium carbonate, found in Tums antacid tablets, neutralizes hydrochloric acid in the stomach to form calcium chloride, water, and carbon dioxide gas. The carbonate ion acts as a base, accepting protons from HCl. The CO₂ evolved can cause belching.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Calcium Carbonate CaCO₃ 1 (s)
Reactivo Hydrochloric Acid HCl 2 (aq)
Producto Water H₂O 1 (l)
Producto Carbon Dioxide CO₂ 1 (g)

Ejemplo cotidiano

Tums antacid tablets work by this exact reaction, neutralizing excess stomach acid and providing relief from heartburn.

Importancia industrial

El carbonato de calcio se utiliza ampliamente en aplicaciones de neutralización de ácidos, incluyendo el tratamiento del agua, la desulfuración de gases de combustión y el ajuste del pH del suelo en la agricultura.

Propiedades

Tipo
Acid-Base
Reversible
No
Energía
Exotérmico
ΔH
-15,3 kJ/mol

Reacciones relacionadas

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Calcium Carbonate and Hydrochloric Acid (Antacid)?
The balanced equation is: CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂.
What type of reaction is Calcium Carbonate and Hydrochloric Acid (Antacid)?
Calcium Carbonate and Hydrochloric Acid (Antacid) is a acid-base reaction.
Is Calcium Carbonate and Hydrochloric Acid (Antacid) exothermic or endothermic?
Calcium Carbonate and Hydrochloric Acid (Antacid) is exothermic (releases energy). The enthalpy change (ΔH) is -15.3 kJ/mol.